Coolant Bottom Hose Supply RIGHT. Porsche 987 Boxster / 987 Cayman / 997  ❭  99710662204

Right Hand Radiator Feed Pipe

This right-hand radiator feed pipe is designed for Porsche 997 and 987 Boxster / Cayman models. It forms a vital part of the front-mounted cooling system, carrying coolant from the engine towards the radiator to ensure efficient heat dissipation.

Fits:

• Porsche Boxster 987 2.7L 2005-08/08
• Porsche Boxster 987 S 3.2/3.4L 2005-08/08
• Porsche Boxster 987 MKII 2.9L 2009-12
• Porsche Boxster S 987 MKII 3.4L 2009-12
• Porsche 997 MK1 Carrera 2 3.6L 2005-08
• Porsche 997 MK1 Carrera 2S 3.8L 2005-08
• Porsche 997 MK1 GT3 2007-09
• Porsche 997 MKII Carrera C2 3.6L 2009-12
• Porsche 997 MKII Carrera C4 3.6L 2009-12
• Porsche 997 MKII Carrera C2S 3.8L 2009-12
• Porsche 997 MKII GT3 2010-11
• Porsche Cayman 2.7L 987C 2006-08
• Porsche Cayman S 3.4L 987C 2005-08
• Porsche Cayman 2.9L 987C MKII 2009-12
• Porsche Cayman S / R 3.4L 987C MKII 2009-12

Diagram ref no 10

With Porsche’s mid- and rear-engine layouts, coolant must travel long distances between the engine and front radiators. This makes the condition of coolant pipes critical to maintaining stable engine temperatures and preventing overheating.

What This Radiator Feed Pipe Does

The radiator feed pipe transports coolant from the engine to the front radiator on the right-hand side of the vehicle.

It helps:

• Maintain continuous coolant flow through the cooling system
• Transfer heat away from the engine to the radiator
• Support stable engine operating temperatures
• Ensure efficient cooling under all driving conditions
• Maintain proper pressure within the cooling circuit

Without a properly functioning feed pipe, coolant flow can be restricted or lost entirely.

Why Radiator Feed Pipes Fail

Over time, coolant pipes are exposed to heat, pressure and environmental conditions that lead to wear and failure.

Common causes include:

Corrosion (on metal sections)
Exposure to moisture and road debris can lead to corrosion over time.

Cracking or splitting
Plastic or rubber sections can become brittle and fail.

Seal and joint deterioration
Connections can weaken, leading to leaks.

Age-related wear
Long-term exposure to heat cycles reduces material strength.

Symptoms of a Failing Radiator Feed Pipe

• Coolant leaks under the vehicle
• Low coolant warning messages
• Engine running hotter than normal
• Visible corrosion or damage on the pipe
• Sweet coolant smell after driving

Replacing a worn or leaking pipe is essential to prevent overheating and engine damage.

Why You May Need to Replace This Pipe

Prevent Engine Overheating
A properly functioning feed pipe ensures reliable coolant circulation.

Fix Coolant Leaks
Replacing damaged pipes restores system pressure and eliminates leaks.

Maintain Cooling System Efficiency
Ensures optimal heat transfer and engine performance.

Essential Preventative Maintenance
Cooling system components should be inspected and replaced as they age.

Direct Fit Replacement
Designed to match original Porsche specifications for correct fitment.